Sean Plat practises exclusively in the area of family law (including collaborative family law). He has extensive experience in resolving family law issues ranging from complex property disputes to cases involving custody of and access to children, child and spousal support, and equalization. Sean is trained as a collaborative family law lawyer and is a member of the Collaborative Family Law Association of Waterloo-Wellington.

Sean’s practice is devoted to all aspects of family law, including parenting, property division, and support. He has successfully conducted trials in the Ontario Court of Justice and the Ontario Superior Court of Justice and he has represented many clients in mediations and arbitrations. Sean's litigation experience and knowledge enable him to successfully protect his clients and their rights.

Sean attended law school at Queen's University after obtaining his undergraduate degree at the University of Guelph. He articled at a law firm in Pickering, Ontario and after his call to the bar in 1997 practised at a Hamilton law firm. Sean joined Kearns McKinnon, the predecessor of Miller Thomson, in 1998.

Sean was born and raised in Guelph and remains actively involved in the community.  He is the former president of the Board of Directors of Guelph Independent Living (formerly Guelph Services for Persons with Disabilities), and is a member of the Canadian Bar Association and the Wellington County Law Association.